CVE-2021-21306

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.46% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 84.0% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-02-08 21:20Z5 YR AGO

Last updated

2024-08-03 18:09Z2 YR AGO

Reserved

2020-12-22

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.1

Document digest

2aa86981f8fb5f5ac36f937c60e2e4766763bebc27a8afb5a83886a5b7d856cb

• github.comhttps://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96x_refsource_CONFIRM
• github.comhttps://github.com/markedjs/marked/issues/1927x_refsource_MISC
• github.comhttps://github.com/markedjs/marked/pull/1864x_refsource_MISC
• github.comhttps://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccdx_refsource_MISC
• www.npmjs.comhttps://www.npmjs.com/package/markedx_refsource_MISC